I originally bought 1.75" baffles and traded them in for the 2" which I'm satisfied with. I was originally afraid the 2" might be too loud to hear the radio and for my taste but they are only a little louder than the 1.75" and still quieter than most pipes. I thought it was a pain to grind out the welds in the pipes without damaging them. I did about 95% of one pipe nearly busting through the pipe before I sent them to Fullsac and had them finish. It was worth the $ IMHO. If you have the right tools might be easier but I spent several hours. I did it with a dremel and various bits, none really suited for the job or long enough to get inside the pipe with the bit and remain at a straight cutting angle.